Molecules and Cells

  • 제21권2호
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  • Pages.213-217
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  • 2006
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  • 1016-8478(pISSN)
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  • 0219-1032(eISSN)
한국분자세포생물학회 (Korean Society for Molecular and Cellular Biology)
권호 표지

Antitumor Activity of the Novel Human Cytokine AIMP1 in an in vivo Tumor Model

  • Lee, Yeon-Sook (Division of Life Sciences, and Graduate School of Biotechnology, Korea University) ;
  • Han, Jung Min (Imagene Co. Ltd. Biotechnology Incubation Center, Seoul National University) ;
  • Kang, Taehee (Imagene Co. Ltd. Biotechnology Incubation Center, Seoul National University) ;
  • Park, Young In (Division of Life Sciences, and Graduate School of Biotechnology, Korea University) ;
  • Kim, Hwan Mook (Korea Research Institute of Bioscience and Biotechnology (KRIBB)) ;
  • Kim, Sunghoon (National Creative Research Initiatives Center for ARS Network, College of Pharmacy Seoul National University)
  • 투고 : 2005.10.15
  • 심사 : 2006.02.20
  • 발행 : 2006.04.30
⟨ 이전 논문 다음 논문 ⟩

초록

Although AIMP1 (previously known as p43) is one of three auxiliary proteins bound to a macromolecular aminoacyl tRNA complex, it is also secreted as a cytokine controlling both angiogenesis and immune responses. Here we show that systemically administered purified recombinant human AIMP1 had anti-tumor activity in mouse xenograft models. In Meth A-bearing Balb/c mice, tumor volume increased about 28 fold in the vehicle treatment group, while an increase of about 16.7 fold was observed in the AIMP1-treated group. We also evaluated the anti-tumor activity of AIMP1 in combination with a sub-clinical dose of the cytotoxic anti-tumor drug, paclitaxel. The growth of NUGC-3 human stomach cancer cells was suppressed by 84% and 94% by the combinations of 5 mg/kg paclitaxel + 25 mg/kg AIMP1 (p = 0.03), and 5 mg/kg paclitaxel + 50 mg/kg AIMP1 (p = 0.02), respectively, while 5 mg/kg paclitaxel alone suppressed growth by only 54% (p = 0.02). A similar cooperative effect of AIMP1 and paclitaxel was observed in a lung cancer xenograft model. These results suggest that AIMP1 may be useful as a novel anti-tumor agent.

키워드

참고문헌

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